Home / 42,468.18-63,641.80-31,286.94

Finding the Fourth Proportional to 42,468.18, 63,641.80 and 31,286.94

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Solution

The fourth proportional to 42,468.18, 63,641.80 and 31,286.94 is: 46,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,468.18 : 63,641.80 = 31,286.94 : x
  2. Step 2: Convert to fraction form
    42,468.18/63,641.80 = 31,286.94/x
  3. Step 3: Cross multiply
    42,468.18x = 63,641.80 × 31,286.94
  4. Step 4: Simplify right side
    42,468.18x = 1,991,157,178.09
  5. Step 5: Solve for x
    x = 1,991,157,178.09/42,468.18
  6. Step 6: Final answer
    x = 46,885.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.